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/*
* Copyright (C) 2006 The Android Open Source Project
* Copyright (C) 2011 Eric Bowman
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.xtremelabs.robolectric.shadows;
import android.util.SparseArray;
import com.xtremelabs.robolectric.WithTestDefaultsRunner;
import com.xtremelabs.robolectric.bytecode.ShadowWrangler;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
/**
* Tests for shadow implementation of SparseArray. Basically copied & pasted the
* real SparseArray tests from the 2.2 SDK.
*
* @author Eric Bowman (ebowman@boboco.ie)
* @since 2011-02-25 11:01
*/
@RunWith(WithTestDefaultsRunner.class)
public class SparseArrayTest {
private static final int[] KEYS = {12, 23, 4, 6, 8, 1, 3, -12, 0, -3, 11, 14, -23};
private static final Integer[] VALUES = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
private static final int LENGTH = VALUES.length;
private static final int NON_EXISTED_KEY = 123;
private static final Integer VALUE_FOR_NON_EXISTED_KEY = -1;
@Test
public void testSparseArrayWithDefaultCapacity() {
ShadowWrangler.getInstance().logMissingInvokedShadowMethods();
SparseArray<Integer> sparseArray = new SparseArray<Integer>();
assertEquals(0, sparseArray.size());
int length = VALUES.length;
for (int i = 0; i < length; i++) {
sparseArray.put(KEYS[i], VALUES[i]);
assertEquals(i + 1, sparseArray.size());
}
for (int i = 0; i < length; i++) {
assertEquals(new Integer(i), sparseArray.get(KEYS[i]));
}
for (int i = 0; i < length; i++) {
assertEquals(sparseArray.indexOfValue(VALUES[i]), sparseArray.indexOfKey(KEYS[i]));
}
// for key already exist, old value will be replaced
int existKey = KEYS[0];
Integer oldValue = VALUES[0]; // 0
Integer newValue = 100;
assertEquals(oldValue, sparseArray.get(existKey));
assertEquals(LENGTH, sparseArray.size());
sparseArray.put(existKey, newValue);
assertEquals(newValue, sparseArray.get(existKey));
assertEquals(LENGTH, sparseArray.size());
assertEquals(VALUE_FOR_NON_EXISTED_KEY,
sparseArray.get(NON_EXISTED_KEY, VALUE_FOR_NON_EXISTED_KEY));
assertNull(sparseArray.get(NON_EXISTED_KEY)); // the default value is null
int size = sparseArray.size();
sparseArray.append(NON_EXISTED_KEY, VALUE_FOR_NON_EXISTED_KEY);
assertEquals(size + 1, sparseArray.size());
assertEquals(size, sparseArray.indexOfKey(NON_EXISTED_KEY));
assertEquals(size, sparseArray.indexOfValue(VALUE_FOR_NON_EXISTED_KEY));
assertEquals(NON_EXISTED_KEY, sparseArray.keyAt(size));
assertEquals(VALUE_FOR_NON_EXISTED_KEY, sparseArray.valueAt(size));
sparseArray.setValueAt(size, VALUES[1]);
assertTrue(VALUE_FOR_NON_EXISTED_KEY != sparseArray.valueAt(size));
assertEquals(VALUES[1], sparseArray.valueAt(size));
size = sparseArray.size();
assertEquals(VALUES[1], sparseArray.get(KEYS[1]));
assertFalse(VALUE_FOR_NON_EXISTED_KEY == VALUES[1]);
sparseArray.delete(KEYS[1]);
assertEquals(VALUE_FOR_NON_EXISTED_KEY,
sparseArray.get(KEYS[1], VALUE_FOR_NON_EXISTED_KEY));
assertEquals(size - 1, sparseArray.size());
size = sparseArray.size();
assertEquals(VALUES[2], sparseArray.get(KEYS[2]));
assertFalse(VALUE_FOR_NON_EXISTED_KEY == VALUES[2]);
sparseArray.remove(KEYS[2]);
assertEquals(VALUE_FOR_NON_EXISTED_KEY,
sparseArray.get(KEYS[2], VALUE_FOR_NON_EXISTED_KEY));
assertEquals(size - 1, sparseArray.size());
sparseArray.clear();
assertEquals(0, sparseArray.size());
}
@Test
public void testSparseArrayWithSpecifiedCapacity() {
SparseArray<Integer> sparseArray = new SparseArray<Integer>(5);
assertEquals(0, sparseArray.size());
int length = VALUES.length;
for (int i = 0; i < length; i++) {
sparseArray.put(KEYS[i], VALUES[i]);
assertEquals(i + 1, sparseArray.size());
}
for (int i = 0; i < length; i++) {
assertEquals(VALUES[i], sparseArray.get(KEYS[i]));
}
for (int i = 0; i < length; i++) {
assertEquals(sparseArray.indexOfValue(VALUES[i]), sparseArray.indexOfKey(KEYS[i]));
}
// for key already exist, old value will be replaced
int existKey = KEYS[0];
Integer oldValue = VALUES[0]; // 0
Integer newValue = 100;
assertEquals(oldValue, sparseArray.get(existKey));
assertEquals(LENGTH, sparseArray.size());
sparseArray.put(existKey, newValue);
assertEquals(newValue, sparseArray.get(existKey));
assertEquals(LENGTH, sparseArray.size());
assertEquals(VALUE_FOR_NON_EXISTED_KEY,
sparseArray.get(NON_EXISTED_KEY, VALUE_FOR_NON_EXISTED_KEY));
assertNull(sparseArray.get(NON_EXISTED_KEY)); // the default value is null
int size = sparseArray.size();
sparseArray.append(NON_EXISTED_KEY, VALUE_FOR_NON_EXISTED_KEY);
assertEquals(size + 1, sparseArray.size());
assertEquals(size, sparseArray.indexOfKey(NON_EXISTED_KEY));
assertEquals(size, sparseArray.indexOfValue(VALUE_FOR_NON_EXISTED_KEY));
assertEquals(NON_EXISTED_KEY, sparseArray.keyAt(size));
assertEquals(VALUE_FOR_NON_EXISTED_KEY, sparseArray.valueAt(size));
sparseArray.setValueAt(size, VALUES[1]);
assertTrue(VALUE_FOR_NON_EXISTED_KEY != sparseArray.valueAt(size));
assertEquals(VALUES[1], sparseArray.valueAt(size));
size = sparseArray.size();
assertEquals(VALUES[1], sparseArray.get(KEYS[1]));
assertFalse(VALUE_FOR_NON_EXISTED_KEY == VALUES[1]);
sparseArray.delete(KEYS[1]);
assertEquals(VALUE_FOR_NON_EXISTED_KEY,
sparseArray.get(KEYS[1], VALUE_FOR_NON_EXISTED_KEY));
assertEquals(size - 1, sparseArray.size());
size = sparseArray.size();
assertEquals(VALUES[2], sparseArray.get(KEYS[2]));
assertFalse(VALUE_FOR_NON_EXISTED_KEY == VALUES[2]);
sparseArray.remove(KEYS[2]);
assertEquals(VALUE_FOR_NON_EXISTED_KEY,
sparseArray.get(KEYS[2], VALUE_FOR_NON_EXISTED_KEY));
assertEquals(size - 1, sparseArray.size());
sparseArray.clear();
assertEquals(0, sparseArray.size());
}
}
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